Tools don't matter

Tools don't matter I don't use vim or emacs, but for some reason whenever I used to read a vim or emacs article or blog post, I used to download, install and spend the rest of the day reading books, manuals and playing with the editors.

A case study in micro-optimization

Last week I saw a wrap up from cedric’s coding challenge on his blog, the problem looked simple enough, “write a counter function that counts from 1 to max but only returns numbers whose digits don’t repeat”.